package com.lzj.demo.collection.string;

public class StringTest04 {
    public static void main(String[] args) {
        int[] arr={1,2,3};
        String s = arrayToString(arr);
        System.out.println("s:"+s);
    }
    public static String arrayToString(int[] arr){
    String s="";
    s +="[";
    for(int i=0;i<arr.length;i++){
        if(i == arr.length-1){
            s += arr[i];
        }else {
            s += arr[i];
            s += ", ";
            
        }
    }

    s+="]";
    return s;
    }

}
